Sediment provenance discrimination in northern Okinawa Trough during the last 24 ka and paleoenvironmental implication:rare earth elements evidence
文献类型：CNKI期刊论文
| 作者 | Xu ZK(徐兆凯); Li TG(李铁刚) ; Chang FM(常凤鸣); CHOI Jinyong; LIM Dhongil; Xu FJ(徐方建)
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| 发表日期 | 2012-11-15 |
| 出处 | Journal of Rare Earths
 |
| 关键词 | sediment provenance discriminant function rare earth elements Tsushima Warm Current northern Okinawa Trough |
| 英文摘要 | Rare earth elements(REE) compositions and discriminant function were successfully used to examine high resolution sediment source changes in the northern Okinawa Trough over the last 24.1 ka,especially for the influence from the Yellow River and the Tsushima Warm Current(TWC) that has not been well solved.Variations of these parameters were clearly divided into three distinct depositional units.During Interval 1(24.1-16.0 ka BP),the paleo-Yellow River and the paleo-Yangtze River mouths were situated near the studied area and could have played major roles in the sedimentation therein.In Interval 2(16.0-7.3 ka BP),these river mouths gradually retreated with global sea-level rise,leading to less fluvial inputs from them to the northern Okinawa Trough.Meanwhile,formation of the TWC could carry some sediment loads of Taiwan to the studied core,especially during its late phase(8.0-7.3 ka BP).Modern oceanographic conditions,with a predominance of the TWC,were finally established since the beginning of Interval 3,causing more terrigenous contribution from Taiwan to the studied area.Sub-sequently,modern depositional environments mainly influenced by the Yellow River,the Yangtze River,and the TWC were finally formed. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the Public Science and Technology Research Funds Projects of Ocean,State Oceanic Administration of the People’s Republic of China (201005003) ; the National Natural Science Foundation of China (41230959,41106043,41076030) ; the National Basic Research Program of China (2007CB815903) |
| 卷 | v.30期:11页:114-120 |
| 语种 | 英文; |
| 分类号 | P736.2 |
| ISSN号 | 1002-0721 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/191086]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.SouthSeaInstitute,KoreaOceanResearchandDevelopmentInstitute 2.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 3.DepartmentofOceanography,KunsanNationalUniversity 4.SchoolofGeo-sciences,ChinaUniversityofPetroleum |
| 推荐引用方式 GB/T 7714 | Xu ZK,Li TG,Chang FM,et al. Sediment provenance discrimination in northern Okinawa Trough during the last 24 ka and paleoenvironmental implication:rare earth elements evidence. 2012. |
入库方式： OAI收割
来源：海洋研究所
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